Last years versions were 300rms. This years are 500rms.
If yours are red they are 300...white=500.
I have a pair of them sitting in my room right now. I have put anything from a 300rms profile amp to a 1200rms viper on them. My fav would definatly have to be an orion 600d. Puts out plenty of power. (this is for the RED 300 watt version)
For the white ones...I currently have a memphis 1000d that would work well with them ( no pressure) other amps you could look into...